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diff --git a/ir/be/beflags.h b/ir/be/beflags.h
index 04a12ce2d..6c5eb9260 100644
--- a/ir/be/beflags.h
+++ b/ir/be/beflags.h
@@ -21,22 +21,31 @@
  * @file
  * @brief       modifies schedule so flags dependencies are respected.
  * @author      Matthias Braun, Christoph Mallon
- * @version     $Id: besched.h 14693 2007-06-21 15:35:49Z beck $
  */
 #ifndef FIRM_BE_BEFLAGS_H
 #define FIRM_BE_BEFLAGS_H
 
 #include "bearch.h"
-#include "beirg.h"
 
+/**
+ * Callback which rematerializes (=duplicates) a machine node.
+ */
 typedef ir_node * (*func_rematerialize) (ir_node *node, ir_node *after);
 
+/**
+ * Callback function that checks whether a node modifies the flags
+ */
+typedef bool (*check_modifies_flags) (const ir_node *node);
+
 /**
  * Walks the schedule and ensures that flags aren't destroyed between producer
  * and consumer of flags. It does so by moving down/rematerialising of the
  * nodes. This does not work across blocks.
+ * The callback functions may be NULL if you want to use default
+ * implementations.
  */
 void be_sched_fix_flags(ir_graph *irg, const arch_register_class_t *flag_cls,
-                        func_rematerialize remat_func);
+                        func_rematerialize remat_func,
+                        check_modifies_flags check_modifies_flags_func);
 
 #endif